Scientific Notation, Significant Figures, & Metric Conversions

John is studying physics and he came across a number 0.00076 in his textbook. How many significant digits are there in this number?

• 2

• 4

• 5

• 6

John is reading a scientific report and comes across the number 90,000.00. How many significant digits are there in this number?

• 1

• 2

• 5

• 7

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

Which of the following is the answer for the problem with the correct number of significant digits?

24.32 + 1.2

• 25.6

• 25.52

• 25.5

• 25

Which of the following is the answer for the problem with the correct number of significant digits?
23.91 x 12.861 = 307.50651

• 308
• 307.51
• 307.5
• 307

Which of the following is the answer for the problem with the correct number of significant digits?

0.0025 x 1.41

• 0.00

• 0.004

• 0.00353

• 0.0035

Solve & Round to Correct Sig Figs.
4.5 + 4.32 = 

• 8.8
• 8.7
• 8
• 8.0

Divide these numbers and show the correct number of significant figures

0.04263 ÷ 0.306

• 0.139

• 0.1393

• 0.13931

• 0.14

How many mL are in 2.50 L?

How many L are in 250.0 mL?